Sudoku (Part II) Adding complexity to the matrix

To start from the beginning, go to: Sudoku (Part 1)

The next example matrix starts by arranging the letters in the top three blocks in a slightly more random fashion:

Instead of just copying the mini-columns to the left or right to form the lower and middle left two blocks, we can muddle the letters within the mini-columns:

You will notice now, that it might be quite easy to get things wrong when filling out the last four blocks.

You can now play around with building matrices that are based on patterns. You will find that it is much easier to obtain a 'true' matrix quickly if use patterns. If however, you get bored with doing it like this, and start wanting to arrange the matrix more-or-less randomly, you might want to go to the next post in this Sudoku series.